Family name Castilan (Castilan 
) , in all the world, is a rare surname. The last name Castilan is habitual in Philippines, where it is a rare surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname.
Jan, Glaisa, Lucile, Elvira, Eldred, Emilio, Mel Philip, Michael, Antoine, Adelita, Cherryl, Chelsea, Precila, Ricardo, Gabriel, Jocelyn, Vanessa, Maritess, Marylene, Matthieu, Michelle, Shasteen, Danilo, Aimie Rose, Rowena, Kristy, Mary, Rudy, Tern, Maria, Marie, Anita, Ramon, Randy, Ruben, Daryl, David, Nadya, Elena, Erwin, Flora, Irene, Myrtle, Samuel, Albert, Analyn, Cristy, Ronald, and Consuelo